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Why do twins arouse our curiosity?
Why do twins arouse our curiosity?
admin
2010-07-06
19
问题
Why do twins arouse our curiosity?
Twins have always been a source of curiosity since they occur once in every eighty-six births. About one-third of all twins are identical, or single egg twins. Identical twins have the same genes and, hence, they have more similarities between them. Some identical twins are of difference to each other. For example, one may be left-handed, the other right-handed. As young children, some identical twins may look very much the same since they will be dressed up by their parents in the same way. But identical twins may think and dress alike even when they axe away from each other. In fact, the same thing happened to some identical twins when they were separated at birth and raised apart. They may pursue the same careers, have the same interests, or die at almost the same time.
In contrast to identical twins, fraternal twins are not necessarily of the same sex. In some families there is a hereditary tendency to produce fraternal twins.
选项
A、They occur once in every one hundred births.
B、They seldom occur.
C、They occur once in every eighty-six births.
D、They will grow up with strange behaviours.
答案
C
解析
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公共英语四级笔试题库公共英语(PETS)分类
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公共英语(PETS)
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